Mathematical simulation and control of the capacity of cable lines in an underground channel

A mathematical model of complex heat transfer in a cable channel under the conditions of natural convection is developed. The model is implemented in the ANSYS software package using the finite element method. Convective heat transfer and the effect of climatic conditions on the temperature field in the cable channel and a land tract are studied. The optimal transmitted power is estimated, and possible ways to control the capacity of cables are demonstrated.